2005122020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{16363}}^1$

素因数の和:16940

約数の個数: 48

約数和(自身を含む): 4602080448

約数和(自身を除く): 2596958428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 557, 1114, 2228, 2785, 5570, 6127, 11140, 12254, 16363, 24508, 30635, 32726, 61270, 65452, 81815, 122540, 163630, 179993, 327260, 359986, 719972, 899965, 1799930, 3599860, 9114191, 18228382, 36456764, 45570955, 91141910, 100256101, 182283820, 200512202, 401024404, 501280505, 1002561010, 2005122020]

約数ペア:

[(1, 2005122020), (2, 1002561010), (4, 501280505), (5, 401024404), (10, 200512202), (11, 182283820), (20, 100256101), (22, 91141910), (44, 45570955), (55, 36456764), (110, 18228382), (220, 9114191), (557, 3599860), (1114, 1799930), (2228, 899965), (2785, 719972), (5570, 359986), (6127, 327260), (11140, 179993), (12254, 163630), (16363, 122540), (24508, 81815), (30635, 65452), (32726, 61270)]